I think you could make the piece more interesting to the casual reader by grounding the subject in its history. It's been suggested by the book below that the dominance of equal temperament in western music is a relatively recent innovation, something like 120 years old, and is perhaps a consequence of the industrial revolution and the demand for mass manufacture of musical instruments having uniform qualities it produced.
Further reading: How Equal Temperament Ruined Harmony (and Why You Should Care), by Ross W. Duffin (2008).
My layman's takeaway from the book: Equal Temperament is a compromise tuning that allows a piano to access all major and minor modes, at the cost of the keys on the outer ring of the circle of fifths to be somewhat out of tune. An ET "C Major" "sounds best", and the further you move away from it in either direction, the worse the key sounds. Also, the fact that Beethoven and Mozart were aiming for just intonation and/or meantone in productions of their works seems to be sort of an inside secret among music maestros, with rigid adherence to equal temperament slyly pushed on competing rookies to keep them trapped in the lower ranks by virtue of their resulting weaker performances. But the subject is highly contentious in western music for sure.
